Today, many car manufacturers have tendency toward equipping cars with active suspension. Feedback control strategies require feedback of state variables and this tends to big challenges due to the instrumentation issue (number, type, installation location and cost associated with sensors). The model–based control strategies involve abundant measurements because the vibrational models of car typically include many degrees of freedom. Use of Observer is a conventional method to reduce the number of output variables and estimate state variables. So the aim of observer design is to obtain a full knowledge of vehicle dynamics for On–Board control applications. As the number of measurements and corresponding sensors decreased, cost imposed to the system will decreases and the implementation complexity is also reduced. Unfortunately observer design process is a complex trail & error process. The purpose of this research is to provide a tool for studying the observer structure and evaluating various sensory configurations and to determine the optimal sensor layout to achieve an ideal observer. In this regard, the designer has the ability to choose vehicle model and observer structure, so he is capable of assessing variety of output configurations and their impact on the system design criteria.

In many active noise and vibration control system it is desired to reduce the vibration and also the noise emitted by flexible structure. With this objective the task of the controller is to control maximum number of modes allowed by the control...

An optimal robust Minimax LQG control of vibration of a flexible beam is studied in this paper. The first six modes of the beam in the frequency range of 0–800 Hz is selected in control setup. Among these modes, three modes in the frequency range of...

An optimal suspension system for high–speed passenger trains is proposed in this paper two main objective functions of the ride comfort and the fatigue life of the suspension system are taken into consideration.

This paper presents a study concerning the active vibration control of a smart cantilever beam that is excited by transverse vibrations of the structure that it is clamped to; and the clamped end of the beam is experiencing base motion. It has been...